<template>
  <view>
    <!-- 1.轮播图 -->
    <swiper :indicator-dots="true" circular :autoplay="true" :interval="3000" :duration="1000">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <view class="swiper-item">
          <image :src="item.pics_big" mode="" @click="preview(i)"></image>
        </view>
      </swiper-item>
    </swiper>
    <!-- 2.商品详情 -->
    <div class="goods-info-box" v-if="goods_info.goods_price">
      <view class="price">${{ goods_info.goods_price }}</view>
      <view class="goods-info-body">
        <view class="goods-name">{{ goods_info.goods_name }}</view>
        <view class="favi">
          <uni-icons type="star" siz3="17" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">运费：免运费</view> ----{{ cart.length}}
      <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    </div>
    <!-- 3.底部导航 -->
    <view class="goods-nav">
      <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick"
        @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import { mapState, mapMutations,mapGetters } from 'vuex';
  export default {
    data() {
      return {
        options: [ {
          icon: 'shop',
          text: '店铺',
          infoBackgroundColor: '#007aff',
          infoColor: "red"
        }, {
          icon: 'cart',
          text: '购物车',
          info: 0
        }],
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
        ],
        goods_info: {}
      };
    },
    computed:{
       ...mapState('m_cart', [ 'cart']),
       ...mapGetters('m_cart',['total'])
    },
    watch:{
       // total (newVal) {
       //     this.options[1].info = newVal;
       // }
       total: {
          handler (newVal) {
            this.options[1].info = newVal;
          },
          immediate:true
       }
    },
    onLoad(options) {
      const goods_id = options.goods_id;
      this.getGoodDetail(goods_id);
    },
    methods: {
      ...mapMutations('m_cart', ['addToCart']),
      onClick(e) {
         if (e.content.text == '购物车') {
             uni.switchTab({
                url:'/pages/cart/cart'
             })
         }
      },
      buttonClick(e) {
         if (e.content.text == '加入购物车') {
           // { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
             const goods = {
                goods_id:this.goods_info.goods_id,
                goods_name:this.goods_info.goods_name,
                goods_price:this.goods_info.goods_price,
                goods_count:1,
                goods_small_logo: this.goods_info.goods_small_logo,
                goods_state:true
             }
             this.addToCart(goods);
         }
      },
      preview(i) {
        uni.previewImage({
          current: i,
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      async getGoodDetail(goods_id) {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/detail', {
          goods_id
        });
        if (res.meta.status !== 200) return uni.$showMsg();
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block"')
        this.goods_info = res.message;
      }
    }
  }
</script>

<style lang="scss">
  page {
    background-color: #fff;

    swiper {
      height: 750rpx;

      .swiper-item,
      image {
        width: 100%;
        height: 100%;
      }
    }

    .goods-info-box {
      padding: 10px;

      .price {
        color: #c00000;
        font-size: 18px;
        margin: 10px 0;
      }

      .goods-info-body {
        display: flex;
        justify-content: space-between;

        .goods-name {
          font-size: 13px;
          padding-right: 10px;
        }

        .favi {
          display: flex;
          flex-direction: column;
          align-items: center;
          justify-content: center;
          font-size: 12px;
          color: #b3a9b7;
          width: 120px;
          border-left: 1px solid #efefef;
        }
      }

      .yf {
        font-size: 12px;
        color: gray;
        margin: 10px 0;
      }
    }
    .goods-nav {
      position: sticky;
      bottom: 0;
      left: 0;
      right:0;
    }
  }
</style>
